MC34063AD Datasheet, PDF (2/9 Pages) Tiger Electronic Co.,Ltd – DC-to-DC Converter Control Circuits

BLOCK DIAGRAM
MC34063A
PIN CONNECTION
Switch
ollector
Switch
Emitter
Timing
apacitor
Ground
1
8
2
7
MC34063A
3
6
4
5
Drive
Collector
Ipk
Vcc
Comparator
Inverting
Input
MAXIMUM RATINGS (Ta=25°C)
Rating
Power Supply Vo ltage
Co mparator Input Voltage Range
Switch Collector Vo ltage
S w i t c h E mi t t e r Vo l t ag e ( VP i n 1 =4 0V)
Switch Collector to Emitter Vo ltage
Driver Collector Vo ltage
Driver Collector Current (Note 1)
Switch Current
Power Dissipation
DIP8
SOP8
Symbol
Vcc
VIR
Vc(switch)
VE(switch)
VCE(switch)
Vc(drive)
Ic(drive)
ISW
PD
Operating Ambient Temperature Range
Storage Temperature Range
Ta
Ts t g
Notes: 1.Maximum package power dissipation limits must be observed
2.ESD data available upon request
Va l u e
40
0.3~40
40
40
40
40
100
1.2
1.25
625
0~70
-65~150
Unit
V
V
V
V
V
V
mA
A
W
mW
°C
°C